On May 20, 2013, a massive EF4 tornado hit Moore, Oklahoma, devastating communities and lives. The tornado, on the ground for 40 minutes, took a path through a subdivision of homes, destroying block after block of homes, and hitting two elementary schools just as school was ending as well as a hospital. Hundreds of people were injured, and at least 91 were killed. Image courtesy of Ks0stm, Creative Commons Attribution-Share Alike 3.0 Unported license